Check code
Abnormal points and detection methods
Causes and check points
Abnormal if drain sensor or float switch detects to be in the water during
cooling or dry operation.
To release this abnormality, reset the power (turn OFF and ON).
TH21: Indoor intake temperature thermistor
TH22: Indoor liquid pipe temperature thermistor
TH23: Indoor gas pipe temperature thermistor
Reverse connection of extended piping (when
connecting multiple units)
Reverse connection of indoor/ outdoor connector
Defective thermistor of TH21 or TH22/23
Defective drain sensor or float switch
Defective drain pump
Poor drainage
·
Clogged drain pump
·
Clogged drain pipe
●Diagnosis of defectives
Make sure to turn the power OFF before connecting/disconnecting any connectors, or replacing boards.
Diagnosis
Remedy
2500
Water leakage
No
Yes
●
Is there an adhesion of water
drops on the drain sensor?
●Is there a difficulty when
pulling up the float switch
manually?
Solve the problem.
No
Yes
Yes
Yes
No
Check the temperature
of TH22/23 if they are
within appropriate range.
Are they within the range?
Does the drain pump work?
Is the drain level
unusually high?
Refer to the diagnosis of check code<2502>.
Check the drain discharge system for:
·
Dirty drain pan (needs to be cleaned)
·
Clogged drain pump
·
Clogged or reverse connection of drain pipe
Start heating operation
·
In heating operation
The temperature difference between
the intake and blowing air:
Approx. 14 to 30
:
.
Piping temperature: Approx. 40 to 55
[104 to 131
-
F]
Note:
The temperature may differ depending
on the operating condition.
Turn ON the emergency
operation switch (SWE).
Continue to the next page
Chart 1 of 2
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OCH575
Summary of Contents for PUMY-P200YKM
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